Question

A car of mass m = 1100 kg, moving with a velocity of 22.0 m/s, skidded...

A car of mass m = 1100 kg, moving with a velocity of 22.0 m/s, skidded off the road hitting a tree that brought the car to rest in 2.0 s. Determine

(a) the impulse J imparted to the tree.

(b) the average force that acted on the tree during collision.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

a) Impulse is defined as a change in momentum (occur due to collision)

Here = 0, and = 22.0 m/s, and m = 1100 kg

So the impulse J= -1100*22= - 24200 kg m/s

Impulse is a vector, so a negative impulse means the net force is in the negative direction.

b) Also, impulse can be defined as

So average force

= 12100 N

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 1100 kg car moving at 5.2 m/s is initially traveling north in the positive y...
A 1100 kg car moving at 5.2 m/s is initially traveling north in the positive y direction. After completing a 90° right-hand turn to the positive x direction in 3.9 s, the inattentive operator drives into a tree, which stops the car in 290 ms. What is the magnitude of the impulse on the car (a) due to the turn and (b) due to the collision? What is the magnitude of the average force that acts on the car (c)...
A 2.50 kg mass moving 7.50 m/s to the right collides head on with a 4.90...
A 2.50 kg mass moving 7.50 m/s to the right collides head on with a 4.90 kg mass. After the collision the 2.50 kg mass is moving 5.00 m/s to the left and the 4.90 kg mass is moving 4.88 m/s to the right. a. Calculate the velocity of the 4.90 kg mass before the collision b. If the collision lasts for 0.0625 seconds calculate the force that acted on each mass during the collision.
A 1060 - kg car moving at 8.80 m/s is initially traveling north along the positive...
A 1060 - kg car moving at 8.80 m/s is initially traveling north along the positive direction of a y axis. After completing a 90° right-hand turn to the positive x direction in 4.00 s, the inattentive operator drives into a tree, which stops the car in 430 ms. In unit-vector notation, what is the impulse on the car during the turn? + In unit-vector notation, what is the impulse on the car during the collision? + What is the...
1500-kg car moving at 16.00 m/s suddenly collides with a stationary car of mass 1000 kg....
1500-kg car moving at 16.00 m/s suddenly collides with a stationary car of mass 1000 kg. Time of collision is .02 secs e. What is the average force acting on the stationary car by the moving car during the collision? f. What is the total kinetic energy before the collision? g. What is the total kinetic energy after the collision? h. What is change in momentum? i. What happens to the lost kinetic energy? Explain clearly j. Is this an...
A driver traveling at 58 m/s in a car of mass 1100 kg runs into the...
A driver traveling at 58 m/s in a car of mass 1100 kg runs into the rear end of a police car of mass 1400 kg, traveling at 25.52 m/s. The collision is completely inelastic, and all motion is restricted to a straight line. The acceleration of gravity is 9.8 m/s 2 . Immediately following the collision, what is the shared velocity of the two cars? Answer in units of m/s. The engines stop working, wheels lock up, and the...
A 1200 kg car moving at 5.3 m/s is initially traveling north in the positive y...
A 1200 kg car moving at 5.3 m/s is initially traveling north in the positive y direction. After completing a 90° right-hand turn to the positive x direction in 4.1 s, the inattentive operator drives into a tree, which stops the car in 260 ms. What is the magnitude of the impulse on the car (a) due to the turn and (b) due to the collision? What is the magnitude of the average force that acts on the car (c)...
A car having mass M1= 1000 Kg moving initially at V1i= 60 m/s collides with a...
A car having mass M1= 1000 Kg moving initially at V1i= 60 m/s collides with a car having mass M2= 3000 Kg that was moving initially at V2i = 20m/s. After the inelastic collision, the cars stick and move together. The final velocity of the two cars just after collision is Vf  =_______ m/s Part A 40 20 60 30 Part B If the collision time is t = 0.25 seconds, the force exerted on the car having mass M2= 3000...
1. A horizontal moving walkway is moving at 3 m/s. On the average, during each second,...
1. A horizontal moving walkway is moving at 3 m/s. On the average, during each second, four stationary people step onto it and four people step off it. Assuming each person’s mass is 60 kg, what average driving force must be exerted on the walkway to keep it moving? (Ans: 720 N) 2. Blocks A and B are moving toward each other along the x-axis. A has a mass of 2.0 kg and a velocity of 50 [m/s], while B...
a 1.5 kg car (1) initially moving at 4.0 m/s to the right collides with a...
a 1.5 kg car (1) initially moving at 4.0 m/s to the right collides with a 2.0 kg car (2) initially moving at 2.0 m/s to the left. After the inelastic collision, car 1 is moving to the left at 1.2 m/s A) What is the velocity and direction of car 2 after the collision? B) What is the change in total kinetic energy and the percentage of initial kinetic energy remaining after the collision?
A ball of mass 2 kg is moving with a velocity of 12 m/s collides with...
A ball of mass 2 kg is moving with a velocity of 12 m/s collides with a stationary ball of mass 6 kg and comes to rest. calculate the velocity of the 6 kg ball after the collision. (both balls are elastic)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT